I do not have access to up-to-date market prices and trends. However, as far as I know, Jezersko Tuff is a relatively common type of volcanic stone found in Slovenia and is generally considered a lower-cost construction material compared to other types of ornamental or precious stones. The cost can vary depending on factors such as availability, extraction, production, and transportation costs. It is best to consult with a local supplier or experienced builder for accurate pricing information.